| 发明名称 |
METHOD AND APPARATUS FOR EXPANDING AN ISOLATION TUBING |
| 摘要 |
A method of isolating a section of downhole tubing comprises: running a leng th of expandable tubing (20) into a tubing-lined borehole (12, 14) and positioning the expandable tubing (20) across a section of tubing to be isolated; deforming at least portions of the expandable tubing (36, 40) to increase the diameter of the portions to sealingly engage the tubing (14) an d to isolate the tubing section. |
| 申请公布号 |
CA2356144(A1) |
申请公布日期 |
2000.06.29 |
| 申请号 |
CA19992356144 |
申请日期 |
1999.12.22 |
| 申请人 |
WEATHERFORD/LAMB, INC. |
发明人 |
METCALFE, PAUL DAVID;SIMPSON, NEIL ANDREW ABERCROMBIE |
| 分类号 |
B21D17/04;B21D39/04;B21D39/10;B21D41/02;E21B7/00;E21B7/20;E21B19/16;E21B23/00;E21B23/02;E21B23/04;E21B29/00;E21B29/10;E21B33/10;E21B33/13;E21B33/138;E21B33/16;E21B43/08;E21B43/10;(IPC1-7):E21B29/10 |
主分类号 |
B21D17/04 |
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